4 oz. Original formula Cleanser and Conditioner The Cleanser/Conditioner is formulated to be absorbed by your scalp where the cleansing action is needed. The Cleanser/Conditioner also contains moisturizing agents which provide a proper balance for healthy hair and scalp, facilitating the natural growth of your hair. The cleanser/conditioner is formulated to remove the remains of the overnight formula making your scalp clean and ready for the day. (Cleanser/Conditioner and the Overnight Formula are the products that stimulate hair growth)